Main.hs

{-# LANGUAGE TemplateHaskell, TypeFamilies, OverloadedLists #-} -- TODO PatternSynonyms, 
-- {-# OPTIONS_GHC -ddump-splices #-}  -- for debugging 
{-# OPTIONS_GHC -fno-warn-missing-signatures #-} 
{-# OPTIONS_HADDOCK show-extensions #-}

{-| (see source) 

-}
module Derive.List.Main where 
import Derive.List.Internal 

import Data.Semigroup 

import GHC.Exts (IsList (..))
import Language.Haskell.TH


data Elisp
 = ElispAtom (Either String Integer)
 | ElispSexp [Elisp]
 deriving (Show)

deriveList ''Elisp 'ElispSexp

-- | the generated emptyElisp can be documented 
emptyElisp  :: Elisp 
-- | the generated appendElisp can be documented 
appendElisp :: Elisp -> Elisp -> Elisp
-- | the generated toElispList can be documented 
toElispList :: Elisp -> [Elisp]

{-| tests all instances and declarations 

-}
main = do
 putStrLn "" 
 print $ makeDeriveListNames defaultDeriveListConfig ''Elisp 'ElispSexp
 putStrLn "" 
 print$ emptyElisp
 print$ toElispList (ElispAtom (Right 1))
 print$ ElispSexp [ElispAtom (Left "+"), ElispAtom (Right 1), ElispAtom (Right 2)] <> mempty <> ElispAtom (Right 3)